25886770722 has 30 divisors (see below), whose sum is σ = 58010130849. Its totient is φ = 8628240960.

The previous prime is 25886770699. The next prime is 25886770729. The reversal of 25886770722 is 22707768852.

It can be written as a sum of positive squares in 2 ways, for example, as 13268966481 + 12617804241 = 115191^2 + 112329^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=113769.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (25886770729) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2041522 + ... + 2054162.

Almost surely, 2^25886770722 is an apocalyptic number.

25886770722 is an abundant number, since it is smaller than the sum of its proper divisors (32123360127).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25886770722 is an frugal number, since it uses more digits than its factorization.

25886770722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25296 (or 12646 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 54.

The spelling of 25886770722 in words is "twenty-five billion, eight hundred eighty-six million, seven hundred seventy thousand, seven hundred twenty-two".